"Donald Trump sure has made Kelly Ayotte dance. Day one she loves him, day two she hates him, day three she's back with him — boy, spins round and round," Warren told hundreds on a lawn at St. Anselm College.

Ayotte is in a tight race for re-election against Gov. Maggie Hassan, a Democrat. Like most of the other GOP senators up for reelection this year, Ayotte hardly comes from Trump's wing of the party and has never been a vocal supporter.

But there is no safe distance Republicans can stand from Trump. Democrats, eyeing multiple polls suggesting Clinton has all but sewn up the presidential race, are spending the final two weeks of this campaign working mercilessly to turn the entire GOP into Trump's collateral damage.